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[PATCH] pata_hpt3x3: suspend/resume support

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Again split the chipset init away and call it both on resume and on setup

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Alan 2006-11-27 16:25:51 +00:00 committed by Jeff Garzik
parent 62d64ae0ec
commit aff0df0593
1 changed files with 34 additions and 12 deletions
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46
drivers/ata/pata_hpt3x3.c
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@ -23,7 +23,7 @@
#include <linux/libata.h>
#define DRV_NAME "pata_hpt3x3"
#define DRV_VERSION "0.4.1"
#define DRV_VERSION "0.4.2"
static int hpt3x3_probe_init(struct ata_port *ap)
{
@ -120,6 +120,8 @@ static struct scsi_host_template hpt3x3_sht = {
.slave_configure = ata_scsi_slave_config,
.slave_destroy = ata_scsi_slave_destroy,
.bios_param = ata_std_bios_param,
.resume = ata_scsi_device_resume,
.suspend = ata_scsi_device_suspend,
};
static struct ata_port_operations hpt3x3_port_ops = {
@ -157,6 +159,27 @@ static struct ata_port_operations hpt3x3_port_ops = {
.host_stop = ata_host_stop
};
/**
* hpt3x3_init_chipset - chip setup
* @dev: PCI device
*
* Perform the setup required at boot and on resume.
*/
static void hpt3x3_init_chipset(struct pci_dev *dev)
{
u16 cmd;
/* Initialize the board */
pci_write_config_word(dev, 0x80, 0x00);
/* Check if it is a 343 or a 363. 363 has COMMAND_MEMORY set */
pci_read_config_word(dev, PCI_COMMAND, &cmd);
if (cmd & PCI_COMMAND_MEMORY)
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
else
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
}
/**
* hpt3x3_init_one - Initialise an HPT343/363
* @dev: PCI device
@ -178,21 +201,18 @@ static int hpt3x3_init_one(struct pci_dev *dev, const struct pci_device_id *id)
.port_ops = &hpt3x3_port_ops
};
static struct ata_port_info *port_info[2] = { &info, &info };
u16 cmd;
/* Initialize the board */
pci_write_config_word(dev, 0x80, 0x00);
/* Check if it is a 343 or a 363. 363 has COMMAND_MEMORY set */
pci_read_config_word(dev, PCI_COMMAND, &cmd);
if (cmd & PCI_COMMAND_MEMORY)
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xF0);
else
pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20);
hpt3x3_init_chipset(dev);
/* Now kick off ATA set up */
return ata_pci_init_one(dev, port_info, 2);
}
static int hpt3x3_reinit_one(struct pci_dev *dev)
{
hpt3x3_init_chipset(dev);
return ata_pci_device_resume(dev);
}
static const struct pci_device_id hpt3x3[] = {
{ PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT343), },
@ -203,7 +223,9 @@ static struct pci_driver hpt3x3_pci_driver = {
.name = DRV_NAME,
.id_table = hpt3x3,
.probe = hpt3x3_init_one,
.remove = ata_pci_remove_one
.remove = ata_pci_remove_one,
.suspend = ata_pci_device_suspend,
.resume = hpt3x3_reinit_one,
};
static int __init hpt3x3_init(void)